Ewelink 2Ch rele' and App: Long time to connect and hav the button

I’m experiencing 45/60 sec. in connection time when I need to open the door to requester, from the clik on the App (Android) to the opening of the 2 button menu. Quite tool long…
Italy mobile network.

Is it depending on the advanced plan?

No, nothing related to the Advanced Plan, two factors may cause long loading process, one is the network condition and the second is the phone’s computing power.